Question

6. If a 30 b = ? and c = 15, show that (a - b) –c #a-(b-c)

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Answer 1

Step-by-step explanation:

a=30

b=x

c=15

(a-b)---C

=(30-x)-15

=30-x-15

30=-x-15

-30+15=-x

-x=-15

- and - will be cancelled.

So,

x=15